Toy block



FIG. 1 is a front perspective view of a toy block;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is side elevational view thereof wherein the other side is a mirror image;

FIG. 4 is an end elevational view thereof wherein the other end is a mirror image;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

All broken lines are for illustrative purposes only, and form no part of the claimed design. 

The ornamental design for a toy block, as shown and described. 